Yealink BH71 Earset - Microsoft Teams Certification - Mono - Wireless - Bluetooth - 131.2 ft - 32 Ohm - 100 Hz to 20 kHz - Over-the-ear, Behind-the-ear, Earbud - Monaural - In-ear - Omni-directional, MEMS Technology, Noise Cancelling Microphone - Noise Canceling - Black | Yealink | | BH71 Earset | Microsoft Teams Certification | Mono | Wireless | Bluetooth | 131.2 ft | 32 Ohm | 100 Hz to 20 kHz | Black | Best Buy